Door lock



FIG. 1 is a front elevational view of a door lock showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof, the bottom plan view being a mirror image;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a sectional view taken along line A--A of FIG. 1;

FIG. 7 is an enlarged horizontal cross-sectional view thereof, taken along line A--A of FIG. 1;

FIG. 8 is an enlarged horizontal cross-sectional view thereof, taken within line B--B of FIG. 7;

FIG. 9 is a top, front, and left side perspective view thereof; and,

FIG. 10 is a reduced top, front, and left side perspective view thereof, the broken line disclosure of a container being for illustrative purposes only and forming no part of the claimed design. 

The ornamental design for a door lock, as shown and described. 